baber/WOPTO huggingface dataset:
Patent JP-H0685389-A (JP)
Title: Semiconductor laser element and manufacture thereof
Inventor: HATA TOSHIO
IPC: H01S5/042
Filed: 1992-09-03
Abstract: PURPOSE:To provide a semiconductor laser element of a structure, wherein optical absorption is prevented in the vicinity of the end face of a laser resonator against a laser beam, the spread of a current in the interior of the active layer of the laser element is lessened, the laser element is actuated in a low oscillation threshold current and an oscillation can take place at a high efficiency, and a method of manufacturing the laser element by a method wherein an energy band gap in the active layer in the vicinity of the end face of the resonator is made larger than an energy band gap in the interior of the resonator. CONSTITUTION:A stress introducing layer 6 is formed over an active layer. The width W1, which is formed in the vicinity of the end face of a laser resonator, of the layer 6 is formed wider than the width W2, which is formed in the vicinity of the luminous part in the center of the laser resonator, of the layer 6. Moreover, the layer 6, a second upper clad layer 14 and a cap layer 8 are formed into a ridge form. An energy band gap in the active layer 3, which is positioned under the layer 6, becomes narrow, while as an energy band gap in the layer 3, over which the layer 6 is not provided, is not changed, carrier confinement becomes possible in the lateral direction. As a result, the spread of a current in the layer 3 can be reduced and moreover, a current injection efficiency into the layer 3 is improved.
Patent JP-H0285804-A (JP)
Title: Wavelength demultiplexing detector
Inventor: NOJIRI HIDEAKI
IPC: H01L31/10
Filed: 1988-09-22
Abstract: PURPOSE:To allow demultiplexing of guided light by each wavelength by decreasing the thickness of a clad layer stepwise according to the progressing direction of the guided light and providing an absorption layer and electrode to each of the respective steps. CONSTITUTION:The guided light multiplexed with the respective wavelengths lambda1, lambda2, lambda3 of 0.75mum, 0.8mum, 0.85mum is held confined in the waveguide and the attenuation quantity is only the waveguide loss at the time of the incidence to the end face if the respective refractive indices nz, nc of the clad layers 3, 5 and the refractive index nf of the waveguide 4 are specified to the relation nf>nz>=nc. The skirt of an electric field distribution Dlambda1 of lambda1 rides on the absorption layer 6 and the energy of lambda1 is rapidly absorbed and attenuated when the guided light arrives at the absorption band in the lower part of the electrode 10. The signal of lambda1 which is made into electrons and holes by the absorption layer 6 is taken out as absorption current from the electrodes 10, 13 and the signal is detected. Since the light energy is lower on the long wavelength side at this time and, therefore, the skirt of the electric field distributions Dlambda2, Dlambda3 of lambda2, lambda3 do not arrive at the absorption layer and the energy of lambda2, lambda3 is not lost. The absorption bands 18, 19 are generated similarly in the guided light of lambda2, lambda3 as well and the signals of lambda2, lambda3 are detected.
Patent JP-S6296710-A (JP)
Title: Split type valve arm
Inventor: OHASHI KAZUO
IPC: F01L13/00
Filed: 1985-10-22
Abstract: PURPOSE:To ensure the monolithical fixture of a valve side member and a cam shaft side member constituting a split type valve arm by forming a freely slidable contact surface on said members as opposed to each other, and coupling and discoupling said members through the control of a pressing force on the contact surface thereof. CONSTITUTION:In normal operation wherein pressurized oil is supplied to an oil passage 66, said oil flows into an oil chamber 70 through an inlet hole 64, a secondary oil passage 62, a primary oil passage 60 and an oil groove 42 respectively in order, thereby pressing the boss 44 of a valve side member 16 toward left side. Consequently, the contact part 36 of the valve side member 16 and the contact part 26 of a cam shaft side member 22 are press contacted with each other, and both of said members 16 and 22 are monolithically fixed. In this state, when a push rod 18 has been pushed upward, the cam shaft side member 22 and the valve side member 16 turn as a whole about a valve arm spindle 12, and the pressing force of the valve side member 16 works to push down a valve 14. Also, the valve arm spindle 12 turns monolithically with the valve side member 16 and pressurized oil from the primary oil passage 60 flows into the oil chamber 70 through the oil groove 42.
Patent JP-S62100389-A (JP)
Inventor: MATSUBA HIROKAZU
IPC: B66B7/00
Filed: 1985-10-24
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H1182994-A (JP)
Title: Interior condition detector by cartridge gas cylinder
Inventor: SAITO ATSUSHI
IPC: F23N5/26
Filed: 1997-09-02
Abstract: PROBLEM TO BE SOLVED: To indicate the remaining amount in a gas container, and to inform that the gas pressure in the container becomes an abnormally high pressure, by detecting the position of liquid level or the inside pressure of a cartridge gas cylinder by the detected temperature of a temperature sensor. SOLUTION: The contact part 12 of a cartridge gas cylinder 3 to a bottom wall part 9 by a cartridge gas cylinder mounting mechanism 10 is provided with 6 contact type temperature sensors 13 which are spaced apart at predetermined pitches in a vertical direction. An electric control device 14, which processes electrically after receiving the wall surface temperature signal of the cartridge gas cylinder 3 that is detected by the temperature sensors 13, and an informing means 15, which detects the inside condition of the cylinder 3 on the basis of the process by this control device, are provided. The informing means 15 comprises a light alarm such as a LED and a sound type alarm 23 such as a beeping sound.  The liquid level is indicated, by lighting the LED which corresponds to 2 temperature sensors that generate temperature differences after the computing detection by the electric control device 14.
Patent JP-S6297341-A (JP)
Title: Bonding device
Inventor: HATADA KENZO
IPC: H01L21/60
Filed: 1985-10-23
Abstract: PURPOSE:To prevent coalescence of a bonding tool and a lead together, and to improve reliability of a bonding part, by providing a mechanism for compression and heating at the back surface of a semiconductor element. CONSTITUTION:A metal projection 5 is bonded to a lead 4 of each film carrier 3 by a transfer bump method. On a bonding tool 6 for compression and heating, a semiconductor element 1 is provided. At the upper part of the lead 4, a jig 9 having a heat resisting glass plate 10 is provided at a position facing the semiconductor element 1. Under this state, the bonding tool 6 is lifted and the jig 9 is lowered. Then electrodes 2 of the semiconductor element 1 can be bonded to the metal projections 5. Namely, the heat of a heater 7 of the bonding tool 6 is transferred to the semiconductor element 1 and the bonded part is heated. The bonding tool 6 may be fixed, and only the jig 9 having the heat resisting glass plate 10 may be lowered, lifted 12 and compressed.
Patent JP-S61143546-A (JP)
Title: Amorphous alloy for magnetic head
Inventor: MAKINO TERUHIRO
IPC: C22C45/02
Filed: 1984-11-12
Abstract: PURPOSE:To obtain the amorphous alloy for magnetic heads having superior wear resistance and high thermal stability by providing a composition satisfying specific conditions in the amorphous alloy consisting of the four elements of Co, Fe, Si, and B. CONSTITUTION:The amorphous alloy consisting of the four elements of Co, Fe, Si, and B has a composition formula represented by the formula, where (c+d)=1, (b)=23-27 atomic%, and (c)/(c+d)=0.55-0.65; that is, the value of (b) represents the concentration of semimetals (Si, B), and when (b) exceeds 27 atomic%, the saturation magnetic flux density decreases, and when (b) is <=23 atomic%, the permeability decreases.
Patent JP-H03101078-A (JP)
Title: Coaxial connector
Inventor: UMESATO MASASHI
IPC: H01R13/6585
Filed: 1989-09-12
Abstract: PURPOSE:To form a coaxial connector in small size and high density by providing ground contact pieces in substantially cylindrical contact members inserted into a multiplicity of openings formed in a plate member, and rotating the adjacent contact members so as to bring the ground contact pieces into contact with ground pins. CONSTITUTION:A multiplicity of contacts 20 formed by winding a metal thin plate in a substantially cylindrical shape are inserted into multiple holes 22a bored in a metal plate 22 in predetermined directions, respectively. The holding piece 20c of a coaxial pin 3 is formed inside the cylinder of the contact 20 while a ground contact piece 20d is formed at one point outside the cylinder. The correspondence of a power pin 26 to a ground pin 8 can be arbitrarily determined by changing direction of the contact 20. Any assembling impossibility due to accumulated errors of component parts can be prevented. The component parts can be assembled with the accuracy workable in a normal process, and moreover, the multiplicity of contacts 20 can be arranged in high density. Therefore, a coaxial connector can be formed in small size and high density.
Patent JP-H11120785-A (JP)
Title: Nonvolatile semiconductor memory
Inventor: SUH KANG-DEOG
IPC: G11C16/02
Filed: 1998-08-24
Abstract: PROBLEM TO BE SOLVED: To obtain NAND structure having a small chip area by charging one of a channel region of a memory transistor, a source and a drain junction, or a word line so that binary data previously stored in a memory transistor in a NAND CELL selected during data erasing and writing operation is not changed. SOLUTION: A block selection control circuit makes a word line WL in a memory block BK being not selected floating by turning off a transmission transistor BT relating to the memory block BK being not selected in erasing operation. In program operation, a second selection transistor ST2 in a selected block BK is turned on and program preventing voltage from a source driving circuit is charged to a source and drain junction and a channel of memory transistors M1-M8 in a selected memory block BK.
Patent JP-2000064100-A (JP)
Title: Descaling apparatus for steel strip and apparatus for producing steel strip
Inventor: MABUCHI KATSUMI
IPC: C25F1/06
Filed: 1998-08-24
Abstract: PROBLEM TO BE SOLVED: To provide a descaling apparatus for a steel strip which is capable of increasing a descaling rate and is suitable for miniaturization and an apparatus for producing the steel strip. SOLUTION: The surfaces of the stainless steel strip 1 are annealed in an annealing furnace 4, by which scale consisting of chromium oxides, or the like, is formed. The scale and more particularly the chromium oxides which are the main oxides thereof are dissolved and removed by electrolysis in an aq. neutral salt soln. electrolytic cell section 6. The other oxides are removed in an aq. alkaline soln. electrolytic cell section 12 and an aq. nitric acid soln. electrolytic cell section 16. The anodes 7d and cathodes 7e of the respective electrolytic cell sections are commonly used as electrolyte injection nozzles and inject the electrolyte to both surfaces of the steel strip 1 from their injection ports, by which thin electrolyte films are formed. Current is passed between both the electrodes via the electrolyte films, by which the steel strip 1 is descaled.
Patent JP-H0982158-A (JP)
Title: Power supply system
Inventor: SHIBATA HIROSHI
IPC: H01B17/02
Filed: 1995-09-14
Abstract: PROBLEM TO BE SOLVED: To provide a power supply system in which power required to operate an on-steel-tower equipment can be obtained stably and that economically with a simple structure. SOLUTION: A transmission line 15 is supported by the support arm 14 of a steel tower through an insulator string 12 formed of suspension insulators 11. Capacitors are housed in the cylindrical parts of the suspension insulators 11, and each capacitor is connected in series by a connecting line 22. One end of the connecting line 22 is connected to the transmission line 15, and the other end to the steel tower. A primary divided voltage deriving line 30 is pulled out by the grounding side connecting line 22 to derive the primary divided voltage. The power by the primary divided voltage is further divided by a secondary potential divider 31 to gain a low power.  This low power is converted into DC power by a DC converting circuit 32, and made into pulse power by a current pulse circuit or voltage pulse circuit 34, and an aeronautic marker lamp 18 on the steel tower is flashed by this pulse power.
Patent JP-S6390529-A (JP)
Title: Production of urethane foam
Inventor: NAKATANI KEIICHI
IPC: C08G18/18
Filed: 1986-10-06
Abstract: PURPOSE:To obtain the titled foam in high productivity without delaying the completion of the later stage of the foaming reaction, by reaction, in the presence of a foaming agent, between polyisocyanate and polyol using, as the catalyst, a hydroxyalkyl-alkylimidazole. CONSTITUTION:The objective foam can be obtained by reaction, in the presence of a foaming agent, between a polyisocyanate and polyol using, at least as part of the catalytic system, a 1-(2-hydroxyalkyl)-2-alkylimidazole of formula I (R1 is H or methyl; R2 is 1-4C alkyl; R3 and R4 are each H, methyl, ethyl or hydroxymethyl) [pref. 1-(2-hydroxyethyl)-2-methylimidazole]. The rest of said catalytic system is pref. a polyamine of formula II (R5 and R6 are each 1-4C alkyl; R7 is alkylene, etc.) and/or a salt of amidine of formula III (R8 is H or 1-8C alkyl; R9 is 1-8C alkyl).
Patent JP-H02121999-A (JP)
Title: Synthesis of intermeadiate compound useful for production of nojirimycin and related compounds
Inventor: PIITAA BII ANTSUEBEENO
IPC: C07H9/04
Filed: 1989-09-14
Abstract: 5-Amino-5-deoxy-1,2-O-isopropylidene- alpha -D-glucofuranose is conveniently prepared by a hydride reduction of 5-azido-5-deoxy-1,2-O-isopropylidene- alpha -D-glucuronolactone and can readily be converted to nojirimycin, deoxynojirimycin or homonojirimycin.
Patent JP-2001029272-A (JP)
Title: Foldable waist rest for stool seat
Inventor: AKUSAWA TAKASHI
IPC: A47K13/24
Filed: 1999-07-21
Abstract: PROBLEM TO BE SOLVED: To keep a person in easy attitude when seated on a western-style stool via a waist rest placed therebehind and give him comfortable evacuation. SOLUTION: This foldable waist rest for a stool seat has a base 3 having a suction cup for installation on a stool seat and a waist rest portion 1 disposed on the base 3 via a shaft 2 in a foldable manner, wherein a stopper is disposed on the waist rest portion 1 to keep the waist rest portion 1 at an angle such that it can be supported.
Patent JP-2000067668-A (JP)
Title: Wiring jig for manufacturing wire harness
Inventor: HATSUTORI NAOTADA
IPC: H05K13/06
Filed: 1998-08-24
Abstract: PROBLEM TO BE SOLVED: To improve a wiring jig to be adapted to a branch position in the direction of the outer diameter and the branch of a wire harness, preventing offset from the branch position. SOLUTION: A supporting shaft 11 erected on an assembly working table and wire holding materials 12, 13 threadedly connected onto the supporting shaft 11 in a disconnectable manner are separately provided and elliptical screw mounting holes 12e, 13e are provided in the wire holding materials 12, 13 at their bottoms on the side of connection to the supporting shaft. A screw hole 11a is formed in the upper part of the supporting shaft 11 to thread a screw through the screw mounting hole 11a into the screw hole 11a of the supporting shaft 11 while sliding and/or rotating the wire holding materials 12, 13 with respect to the screw hole 11a of the supporting shaft 11 in a required direction.
Patent JP-S6478843-A (JP)
Title: Laser printing device
Inventor: TERADA TORU
IPC: B41J2/44
Filed: 1987-09-22
Abstract: PURPOSE:To eliminate restrictions on the application range of laser types and increase their applicability without any reduction of laser beam output for the increased number of penetration holes by bending a laser beam penetrating a masked member with a plurality of penetration holes which are opened and closed independently in a single serial arrangement to any direction which crosses a direction in which the penetration holes are formed. CONSTITUTION:When a printing pattern called (A) is printed on a work 12, a control device 6 controls each shutter 5 to coincide with patterns a,b. The control device 6 controls the rotating angle position of each one of first mirrors 13,14 by rotating drive devices 15, 16, and causes a laser oscillator 1 to oscillate for the emission a laser beam L. Consequently, the patterns a, b are given to the laser beam L by a masking means 2 and printed at a required position on the work 12. Next, the shutters are controlled by the control device 6 to adjust the rotating angle position of the first mirror 13 by an amount corresponding to the width of the patterns a, b. Thus the patterns a, b are printed on the work 12.
Patent JP-S6393845-A (JP)
Title: High-tensile steel excellent in cod characteristic in weld zone
Inventor: HASEGAWA TOSHINAGA
IPC: C22C38/58
Filed: 1986-10-08
Abstract: PURPOSE:To manufacture the titled steel of >=80kgf/mm<2> tensile strength, by specifying the chemical components of a steel having the prescribed relationship with the amount of upper bainite in an optical microstructure of a material subjected to synthetic heat-affected zone test so as to determine the amount of upper bainite in a coarse grain + Ac3 region practically univocally. CONSTITUTION:This high-tensile steel has a composition which consists of, by weight, 0.02-0.08% C, 0.05-0.50% Si, 0.50-3.0% Mn, <=0.010% P, <=0.005% S, 0.010-0.10% Al, 0.50-10.0% Ni, 0.60-2.0% Cu, 0.0003-0.0030% B, <=0.0050% N, 0.01-1.50% each of Cr and/or Mo, 0.010-0.10% Nb and/or V, 0.003-0.02% Ca and/or REM, and the balance Fe and contains, if necessary, 0.005-0.015% Ti and in which the value of parameter (x) represented by an equation is regulated to >=12. This steel is improved in deltam as well as in toughness in COD test and has excellent COD characteristics in a weld zone.
Patent JP-H0899784-A (JP)
Title: Rope tension regulating device of rope type elevator
Inventor: TAKIZAWA HIROYOSHI
IPC: B66B5/12
Filed: 1994-09-30
Abstract: PURPOSE: To provide a rope tension regulating device which can regulate a rope in an even rope tension simply, as well as can prevent the loosening of the rope following a tension variation in a rope running condition. CONSTITUTION: A shackle rod 6 connected and fixed to a rope terminal is inserted to the hole of a rope stopping beam 4, and a nut 7 is screwed to the tip side of the shackle rod 6. Between the rope stopping beam 4 and the nut 7, a spring 8 and an auxiliary spring 20 are contracted and provided in serias. And the auxiliary spring 20 is set at a spring constant to be made in a full compressive condition when it is compressed by a load of the value by dividing the full load apllied to all the main ropes, by the number of the main ropes.
Patent JP-S60130285-A (JP)
Title: Terminal system of catv
Inventor: ISHIZU HARUHIKO
IPC: H04N7/16
Filed: 1983-12-16
Abstract: PURPOSE:To simplify the system configuration of an electro-photo transducer or the like in a terminal by separating partial functions of plural terminals and constituting them into a collective terminal provided in a transmission system line to multiplex and transmit signals of plural terminals. CONSTITUTION:Signals are taken into a collective terminal 3 through a directional coupler 2 from a coaxial cable 1 of the CATV transmission line and are transmitted to individual terminals 4 through an optical fiber transmission line 5. In this collective terminal 3, outputs of plural TV signal converters 10 are synthesized by a synthesizer 28 and are applied to a mixer 11. A connection unit 27 is provided between the collective terminal 3 and each terminal 4, and signals are transmitted through optical fibers between connection units 27 and the collective terminal 3. TV converters 10 output TV signals with frequencies different by terminal, and they are synthesized by the synthesizer 28, and signals for data communication have frequencies multiplexed with the output of the synthesizer 28 by the mixer 11, and the output of the mixer 11 is applied to an electro-photo transducer 12 and is transmitted optically.
Patent JP-H06343291-A (JP)
Title: Counter-electromotive force removing device for motor using mos -fet
Inventor: KIN TOUJITSU
IPC: H02P3/18
Filed: 1991-08-26
Abstract: PURPOSE: To protect a switching element from break-down, by removing counter- electromotive force using an MOSFET at accelerating or decelerating time. CONSTITUTION: When a backward current is permitted to flow in Zener diodes ZD2 to ZD4, a voltage formed between resistors R7 and R9 is applied to an inversion input terminal of an operational amplifier OP1. When the voltage is entered in the inversion input terminal and the voltage is higher than a reference voltage previously set at the inversion input terminal, namely counter electromotive force is entered, the output of the operational amplifier OP1 and a transistor Tr1 becomes high. Then, a transistor Tr2 is operated to make a point (c) in a short circuited state between drain and source of an MOSFET (MT) 41. A backward current is carried through a resistor 17 that is joined with the drain (D) of the MOSFET 41, and thereby the heat energy is consumed there and an overvoltage can be prevented.  At the same time, an MOSFET 42 is operated through a resistor R17 and the diode D1 is fed with power and a light emitting diode LED 2 is lightened through a resistor R18.
Patent JP-S6392108-A (JP)
Title: Buffer circuit
Inventor: IDA SHIZUO
IPC: H03F3/34
Filed: 1986-10-06
Abstract: PURPOSE:To allow a buffer circuit to operate even with low electric power by connecting a constant current source between a power source and the collector and base of a differential transistor on an output terminal side. CONSTITUTION:A 2nd constant current source 8 is connected to the power source (VCC) and an output terminal 7. Then when a voltage lower than the sum of the voltage VSE1 of a transistor(TR) 1 and the remaining voltage VCE5 of the constant current source is impressed to a terminal 6 as an input voltage, the TR 1 turns off, but the current 12 of the constant current source 8 flows to a TR 2 and a current source 5 and a voltage V0=VBE2+VCE5 is outputted at the output terminal 7. Therefore, even if a voltage lower than (VBE1+VCE5) is impressed to an input terminal 6, a limiter voltage is outputted and no adverse influence is exerted upon trailing circuits.
Patent JP-H04116917-A (JP)
Title: Aligner
Inventor: TANAKA KOJI
IPC: G03F7/20
Filed: 1990-09-07
Abstract: PURPOSE:To enable a resist on an end face to be exposed completely or achieve exposure simultaneously with facet positioning by emitting light toward outside of a wafer slantly and then receiving its one part on a reflection mirror for illuminating the receiving end face. CONSTITUTION:Ultra-violet rays 3 are emitted slantly to a main surface of a wafer toward outside of a wafer 1. Also, a facet positioning mechanism 4 and an illumination part 2 are formed in one piece and a resist 6 of a wafer edge is exposed while rotating the wafer. In this case, light which enters a reflection mirror 7 is reflected and allows the wafer end face to be exposed. By varying the mounting position, angle, and irradiation angle of the reflection mirror 7, optimum conditions can be determined depending on the type, film thickness, etc., of the resist. With this configuration, resist of end face of the wafer edge can be completely exposed simultaneously with facet positioning.